Table 1

Potential functions for unconventional myosins discussed in this review.

Potential functionMyosinClass
Cell growth and developmentDictyosteliummyoA, B, CI
Yeast Myo3p, 5pI
Aspergillus MYOAI
Cell movementDictyostelium myoA, BI
RNA transportYeast Myo4pV
Organelle particle movementChick brain M5aV
Mouse diluteV
Yeast Myo2pV
Drosophila 95FVI
Chitin localizationYeast Myo2pV
Melanosome transportMouse diluteV
Vacuole inheritanceYeast Myo2pV
EndocytosisDictyostelium myoA, B, C, DI
Yeast Myo3p, 5pI
ExocytosisDictyostelium myoA, BI
Yeast Myo3p, 5pI
Aspergillus MYOAI
Photoreceptor membraneDrosophila ninaCIII
traffickingHuman myosin-7aVII
PhototransductionDrosophila ninaCIII
Rhabdomere integrityDrosophila ninaCIII
Stabilizing or anchoringMouse Snell's waltzerVI
stereociliaHuman M7aVII
Hair cell adaptationM1βI
Leukocyte differentiationHuman M9bIX
Signal transductionHuman M9bIX
Rat myr5IX